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Third Perty Oversight 2 Water, W~te & Lend, Inc. <br />t Sen Luis Mina June 9, 1994 <br />' ^ August 23 -DMG gives approval for construction of the first 10 feet of the Phase <br />II, Raise I Embankment. <br />^ September 9 -Construction of the First 10 feet of the Raise I Embankment is <br />completed. <br />' ^ October 1 -The first DMG site inspection is conducted. <br />^ October 4 -BMRI resumes construction of the Raise I Embankment. <br />' ^ October 8 -BMRI suspends construction on the Raise I Embankment until review <br />and conclusion of outstanding issues raised by the DMG. <br />' ^ October 28 -Site visit by DMG to initiate third-party review. <br />^ November 17 -BMRI resumes construction of the Raise I Embankment upon <br />t approval from the DMG. <br />^ December 9 -BMRI completes construction of the Raise I Embankment. <br />' ^ May 16, 1994 -BMRI submits Final Construction Report to DMG. <br />' 1.3 WORK SCOPE <br />Third-party technical oversight was conducted according to the tasks outlined in the <br />October 15 Agreement. These tasks are outlined below. <br />' 1.3.1 Task 1 -- Familiarization with Approved Plan <br />This work was started on October 25, and included an independent review of pertinent <br />design and permitting documents and correspondence concerning the tailings disposal facility <br />expansion. Documents provided by BMRI and DMG and reviewed by WWL are listed in <br />' Section 7 of this report. Key documents are cited in this report. A meeting with BMRI, DMG, <br />and WWL was held at the mine site on October 28 to acquire additional technical clarification <br />on design and construction material issues. <br />' 1.3.2 Task 2 -- Field Construction Oversight <br />' A construction oversight schedule was established with BMRI and DMG. Field <br />construction oversight was conducted on November 11, 1993 and from November 17 to <br />December 8, 1993. Oversight activities included observation of all phases of expansion <br />' construction. Construction activity updates were provided in weekly reports to DMG by <br />WWL. DMG was to be given immediate notification about construction activities of concern; <br />however, no activities of concern were observed during construction. Recommendations <br />regarding daily or seasonal suspension of construction due to weather conditions were <br />reviewed. Construction of the Raise I Expansion was substantially completed on December <br />9, 1993. <br /> <br />